1. Metamorphic Rock

2. Metamorphic Rock Meaning “to change shape” Changes with temperature
and pressure, but remains
solid
Usually takes place deep in
the Earth

3. Metamorphic Rock
Contact Metamorphism – heated by nearby magma
Increased temperature changes the composition of the rock, minerals are changed into new minerals
Hornfels is a fine-grained non-foliated metamorphic rock produced by contact metamorphism
igh&fr=t

4. Metamorphic Rocks
Regional Metamorphism – pressure builds up in rocks that is deep within the Earth
Large pieces of the Earth’s crust collide and the rock is deformed and chemically changed by heat and pressure

5. Metamorphic Rock Foliated - contain aligned grains of flat minerals
Gneiss is foliated metamorphic rock that has a banded appearance and is made up of granular mineral grains.
It typically contains abundant quartz or feldspar minerals.

6. Metamorphic Rock
Non-Foliated – mineral grains are not arranged in plains or bands
Marble is a non-foliated metamorphic rock that is produced from the metamorphism of limestone.
It is composed primarily of calcium carbonate.

7. Metamorphic Rock
Determine if the following rock samples are foliated or non-foliated:
Quartzite
Amphibolite
Phyllite
Non-Foliated
Non-Foliated
Foliated

8. Metamorphic Rock
Determine if the following rock samples are foliated or non-foliated:
Hornfelz Marble Schist
Non-Foliated
Foliated
Foliated